Device for simulating cracking of hot dry rock to form fracture morphology and method

A fracture shape, hot dry rock technology, applied in the direction of measuring devices, using stable tension/pressure test material strength, instruments, etc., can solve the problem of high sealing performance of hot dry rock wellbore and failure to achieve fracturing effects, etc. problem, achieve the effect of preventing fragments from splashing and convenient operation

Pending Publication Date: 2020-08-28
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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Problems solved by technology

When simulating this process, the tightness of the hot dry rock wellbore is very high, mainly to prevent the water injection pressure from being too high to damage the wellbore but fail to achieve the fracturing effect

Method used

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  • Device for simulating cracking of hot dry rock to form fracture morphology and method
  • Device for simulating cracking of hot dry rock to form fracture morphology and method
  • Device for simulating cracking of hot dry rock to form fracture morphology and method

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Embodiment Construction

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementations obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0040] See Figure 1-Figure 7 , The present invention provides a device for simulating crack formation in dry hot rock, including a frame body 1, a core limiting structure and a heating device, wherein the core limiting structure is arranged on the frame 1, and the core limiting structure The accommodating cavity is formed in the location structure to be useful for placing the core. The core limiting structure is used to simulate the surrounding gro...

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Abstract

The invention provides a device for simulating cracking of a hot dry rock to form fracture morphology and a method, relates to the technical field of rock mass mechanics experiments, and provides a novel simulation device and a method for simulating expansion fracture net morphology under a hot dry rock thermal-mechanical coupling effect. The device comprises a frame body, a rock core limiting structure and a heating device, wherein the rock core limiting structure is arranged on the frame body, an accommodating cavity used for accommodating a rock core is formed in the rock core limiting structure, and the rock core limiting structure is used for simulating a surrounding crustal stress effect borne by the rock core when the rock core in the accommodating cavity expands and cracks; and theheating device is connected with the rock core limiting structure and used for heating the rock core in the accommodating cavity so as to simulate the geothermal temperature. The device and the method are used for simulating the expansion fracture net morphology under the hot dry rock thermo-mechanical coupling effect.

Description

Technical field [0001] The present invention relates to the technical field of rock mechanics experiments, in particular to a device and method for simulating the fracture formation of hot dry rock, and specifically it is a method for simulating the expansion and fracture formation of hot dry rock under thermal-mechanical coupling. Device and method. Background technique [0002] Hot Dry Rock (HDR) is a new type of high-efficiency low-carbon clean energy with the characteristics of large reserves, wide distribution and stable energy supply. The first task in the development process is to use hydraulic fracturing technology to form artificial heat storage in rock reservoirs thousands of meters underground, and then inject cold fluid into the formation, successively circulating between injection wells, artificial heat storage and production wells , Exchange heat with the dry hot rock reservoir, so as to extract the thermal energy in the dry hot rock for ground heating and power ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18G01N3/06
CPCG01N3/06G01N3/18G01N2203/0019G01N2203/0057G01N2203/0062G01N2203/0226G01N2203/0298G01N2203/0641G01N2203/0658
Inventor 汪道兵董永存秦浩韩东旭孙东亮宇波
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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